Home / 3,920.43-5,410.08-2,152.02

Finding the Fourth Proportional to 3,920.43, 5,410.08 and 2,152.02

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Solution

The fourth proportional to 3,920.43, 5,410.08 and 2,152.02 is: 2,969.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,920.43 : 5,410.08 = 2,152.02 : x
  2. Step 2: Convert to fraction form
    3,920.43/5,410.08 = 2,152.02/x
  3. Step 3: Cross multiply
    3,920.43x = 5,410.08 × 2,152.02
  4. Step 4: Simplify right side
    3,920.43x = 11,642,600.36
  5. Step 5: Solve for x
    x = 11,642,600.36/3,920.43
  6. Step 6: Final answer
    x = 2,969.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.